James walter collier



(No Model.)

J. W. OOLLIER. INGANDESGENT ELECTRIC LAMP SOCKET.

No 441,059. Patented Nov. 18, 1890.

JAMES VALTER COLLIER, OF NEXV YORK,'N. Y.

INCANDESCENT-ELECTRlC-LAMP SOCKET.

SPECIFICATION forming part of Letters Patent No. 441,059, dated November18, 1890. Application filed November 16, 1889. Renewed August 28, 1890.Serial No. 863,237. (No model.)

To all whom, it may concern.-

Be it known that I, JAMES WALTER 00L- LIER, of the city, county, andState of New York, have invented new and useful Improvements in Socketsor Holders for Incandescent Lamps, of "which the following is aspecification, reference being had to the accompanying drawings, inwhich Figure 1 is a side elevation of an incandescent lamp embodying myinvention. Fig. 2 is a longitudinal axial section of theholderdissociated from the lamp and its inclosingglobe. Figs. 3 and 4: are aside elevation and longitudinal axial section, respectively, of aslightly-modified form of holder.

The body A of the holder is made from a plastic non-con ducting material-su ch as hard rubber-which is-capable of being molded into form.It is formed with a socket a, which in the present instance isinternally screw-threaded to receive the correspondingly screw-threadedneck of the lamp B, and in the wall and base of this socket are themetallic contacts I) c, which are to meet and make connection with thelamp-contacts in the customary way when the lamp is screwed home in thesocket. The internal form and dimensions of the socket proper a, as wellas the location of the contacts I) c therein, will of course Varyaccording to the particular kind of incandescent lamp to be usedtherewith. Fixed to the contacts Z) a, so as to be in electricalconnection therewith, are the circuit-wires d e, which, as shown in thedrawings, are covered and protected by the usual insulation or insulatedcovering. All of these parts Z? c d c are molded and embedded in theholder during the operation of forming the latter, and by the subsequentvulcanizing are most firmly and permanently held therein. The body ofthe holder is molded in a solid massaround these contactpieces andwires, there being no opening in the base of the holder, but the rubberbeing molded and Vulcanized solidly around the wires, which with theirinsulated covering extend out from the base of the holder to any lengthdesired, so that they may be connected up in the circuit in which thelamp is to be placed. This feature is material and of importance,because thereby I obtain an incandescent-lamp holder which can be usedin damp and wet localities and under Water with the least possibledanger of being injured by oxidation and other injurious influences. Thebase, and indeed the whole body of the holder, is absolutely closedagainst atmospheric in fluences or water.. The usual opening in the 4serve not only as electrical connections, but

also as the means whereby the holder is mechanically attached and upheldin place.

The holder shown in Figs. 1 and 2 is more particularly design ed forsubmarine or subaqueous purposes. The exterior of the holder isscrew-threaded, as at f, to receive a globe O, the internallyscrew-threaded neck of which screws upon the hold er until it brings upagainst the shoulder or flange g. By sea ing the joint between the neckand the flange entrance of water can be wholly prevented.

In the holder shown in Figs. 3 and 4, (designed more particularly forstreet use,) there is upon the exterior of the holder a screwthreadedportion h, upon which screws a clamping-collar 1'. The neck of the shadeused in connection with this holder is clamped between a shoulder j onthe holder and the clamping-collar 2'.

Having described my improvement and the best Way known to me of carryingthe same into effect, what I claim, and desire to secure by LettersPatent, is-

1. An incandescent-lamp socket or holder made from a plasticnon-conducting material, such as hard rubber, having solidly molded andembeded in it the holder-contacts and the circuit-wires for connectingsaid contacts with the outside circuit, said holder havinga solidhermetically-closed base, through and beyond which project the saidcircuit-wires around which thebody of the holderismolded, tially as andfor the purposes hereinbefore as and for the purposes hereinbefore setforth. set forth.

2. An incandescent-lamp socket or holder made from a plasticnon-conducting material,

5 such as hard rubber, having molded and em- [0 In testimony whereof Ihave hereunto set my hand this 15th day of November, 1889.

JAMES \VALTER COLLIER. bedded in the body of the material of whichWitnesses:

JAMES TYSON BOSDEVEX, WILLIAM MCCORMICK.

it is composed the insulated Wires by which it is connected to theoutside circuit, substan-

